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The entries() method returns a new Array Iterator object that contains the key/value pairs for each index in the array.



Return value

A new Array iterator object.


var arr = ['a', 'b', 'c'];
var eArr = arr.entries();

console.log(; // [0, 'a']
console.log(; // [1, 'b']
console.log(; // [2, 'c']

Same as above, using a for…of loop:

var arr = ['a', 'b', 'c'];
var eArr = arr.entries();

for (let e of eArr) {


Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Array.prototype.entries' in that specification.
Standard Initial definition.
ECMAScript 2017 Draft (ECMA-262)
The definition of 'Array.prototype.entries' in that specification.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 38 28 (28) No support 25 7.1
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support No support No support 28.0 (28) No support No support 8.0

See also

Document Tags and Contributors

 Last updated by: SphinxKnight,